Pitch Circle Diameter, or PCD for short, is a measurement of the diameter of the circular line that runs through the center of the wheel's bolt holes. It is an important measurement when it comes to choosing the right wheels for your vehicle.
The PCD of a wheel is determined by the number of bolt holes and the distance between them. It is measured in millimeters and is typically expressed as a single number, such as 5x114.3, which means the wheel has five bolt holes and the diameter of the circle that runs through their centers is 114.3mm.
When selecting wheels for your vehicle, it is important to ensure that the PCD of the wheels matches that of the hub on your car. This will ensure a proper fit and will prevent any issues with vibrations or alignment.
There are a few different PCD measurements that are commonly used on vehicles. Some of the most common include:
- 4x100: This is a common PCD measurement for smaller cars, such as compact and subcompact vehicles.
- 5x114.3: This is a common PCD measurement for mid-size and larger cars, such as sedans and SUVs.
- 6x139.7: This is a common PCD measurement for larger trucks and SUVs.
When purchasing aftermarket wheels, it is important to check the PCD of the wheels to ensure that they will fit your vehicle. Some manufacturers may also list the specific vehicles that a particular set of wheels is compatible with.
It is also worth noting that not all vehicles have the same PCD on all four wheels. Some vehicles have a different PCD on the front and rear wheels, so it is important to check the PCD of all four wheels when selecting new wheels.
In conclusion, Pitch Circle Diameter is an important measurement when it comes to selecting the right wheels for your vehicle. It ensures a proper fit and prevents any issues with vibrations or alignment. Always check the PCD of the wheels and match it with the hub of your car.